CN102756552B - Shading process when task is changed - Google Patents
Shading process when task is changed Download PDFInfo
- Publication number
- CN102756552B CN102756552B CN201210134611.6A CN201210134611A CN102756552B CN 102756552 B CN102756552 B CN 102756552B CN 201210134611 A CN201210134611 A CN 201210134611A CN 102756552 B CN102756552 B CN 102756552B
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- ink
- print job
- printing
- infeed
- covered area
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 230000008569 process Effects 0.000 title description 7
- 238000007639 printing Methods 0.000 claims abstract description 39
- 230000004075 alteration Effects 0.000 claims abstract 4
- 238000010168 coupling process Methods 0.000 claims description 3
- 230000008859 change Effects 0.000 description 7
- 238000004040 coloring Methods 0.000 description 7
- 230000001276 controlling effect Effects 0.000 description 3
- 230000000215 hyperchromic effect Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000007774 anilox coating Methods 0.000 description 1
- 238000007640 computer printing Methods 0.000 description 1
- 238000004590 computer program Methods 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F31/00—Inking arrangements or devices
- B41F31/02—Ducts, containers, supply or metering devices
- B41F31/04—Ducts, containers, supply or metering devices with duct-blades or like metering devices
- B41F31/045—Remote control of the duct keys
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41F—PRINTING MACHINES OR PRESSES
- B41F33/00—Indicating, counting, warning, control or safety devices
- B41F33/0036—Devices for scanning or checking the printed matter for quality control
- B41F33/0045—Devices for scanning or checking the printed matter for quality control for automatically regulating the ink supply
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41P—INDEXING SCHEME RELATING TO PRINTING, LINING MACHINES, TYPEWRITERS, AND TO STAMPS
- B41P2233/00—Arrangements for the operation of printing presses
- B41P2233/10—Starting-up the machine
- B41P2233/11—Pre-inking
Landscapes
- Engineering & Computer Science (AREA)
- Quality & Reliability (AREA)
- Inking, Control Or Cleaning Of Printing Machines (AREA)
Abstract
The present invention relates to a kind of for utilizing the method controlling computer control quantity of ink in the ink-covered area formula inking device of printer (1), wherein, during printing operation, temporarily improve the infeed of quantity of ink compared with conventional requirement.It is a feature of the present invention that by means of described control computer calculate two successive print job aberration and adjust described aberration by temporarily changing the infeed of quantity of ink during the two print job.
Description
Technical field
The present invention relates to a kind of for utilizing control computer control in the ink-covered area formula inking device of printer
The method of quantity of ink processed, wherein, temporarily improves quantity of ink in printing operation compared with conventional requirement
Infeed.
Background technology
Disclosed this for controlling quantity of ink in printer by open source literature DE 100 56 247 A1
Method.Herein relate to is for controlling quantity of ink in the different ink-covered areas of inking unit of printing press
Method, wherein, rapidly adjusts quantity of ink in different ink-covered areas (Farbzonen), wherein, and phase
Adjacent ink-covered area realizes its stable quantity of ink the most as quickly as possible.This is accomplished by, i.e.
The different ink-covered areas of printer depend on temporally the specified of quantity of ink is provided in advance for each ink-covered area
Value；Make each corresponding to described quantity of ink of the value of ink stream exported by the ink source for ink-covered area
Rated value；And when should described rated value be kept constant for an ink-covered area (Zone) at this ink
By exporting, from described ink source, the ink that ink stream corresponding with described rated value remains constant in district
Measure and change change in the case of the second value at the rated value for predetermined ink-covered area from the first value
Quantity of ink in this ink-covered area, its mode is, determines a correction ink stream, and described correction ink stream is one
It is adjusted on individual transition time interval correct in ink stream and the second rated value sum.This causes, when
When in the case of printer operation, the rated value of quantity of ink changes, the quantity of ink that temporarily will improve feeds
In the inking device.The infeed of too high quantity of ink is referred to as " toning ".But the method is only fitted
Together in the change accelerating setup parameter when printing operation during a print job, in order to avoided
Cross the time and thus also avoid maculature.
Summary of the invention
Now, the task of the present invention is, it is provided that a kind of for the ink-covered area formula (zonal) at printer
The inking device utilizes and controls the method that computer controls quantity of ink, even if it allows two printings
Carry out between task realizing required quantity of ink the most more quickly when print job is changed.
According to the present invention, described task is solved by the present invention.Described by other and accompanying drawing draws this
The advantageous configuration of invention.In the method for the invention, to controlling computer programs in this wise so that
Its first printing theme according to two print job calculates the coloring of print job of two successive
Differ from and between two print job, revise described coloring by temporarily improving the infeed of quantity of ink
Difference.It means that feed required ink the most more quickly also between said two print job
And reduce the ink of excess more quickly.
In first configuration of the present invention propose, ink very little in the case of open in the second print job
The quantity of ink fed is improved during the beginning.In this case, feed when the second print job starts to print
Ink be compared to this print job needed for ink many.Thus, by the second print job
Improve ink infeed amount during beginning in short-term and can realize the expectation realization of described second print job more quickly
Coloring.
Another configuration of the present invention proposes, ties in the first print job in the case of ink is too many
The quantity of ink fed is improved during bundle.Pass through at the end of the first print job with method in this way
Improve ink consumption and such as reduce the excess of ink and thus on residue stock when printer is descending
The minimizing faster of excess of ink is realized between two print job.
The big advantage of the inventive method is, need not be first by whole ink between two print job
Take away from the inking device and must rebuild for the second print job the most again.
Moreover, it is proposed that start printing in the second print job in the case of removing very many quantity of ink
Time in short time interval by control computer turn off moistening medium feed and between the described time
After having crossed, connect again described moistening medium feed.Feed significantly by temporarily turning off moistening medium
Accelerate the taking-up of ink.
Moreover, it is proposed that the ratio of described control computer printing based on the first and second print job image
The method relatively selecting coupling.Described control computer is by the printing of two print job followed each other
The content of figure is compared to each other and determines whether and need more or less of oil in which ink-covered area
Ink.Then, according to the ink demand so tried to achieve, or relevant ink-covered area is carried out for reducing
The method of excess of ink or carry out for improving the method that ink feeds.Described regulation process can be automatic
Carry out or first printing worker explicitly obtains corresponding suggestion on screen and then can pass through behaviour
Predetermined measure is taked in control.This considerably simplifies the work of printing worker, because described printing supplies
Enter the method that oneself need not calculate and select coupling.
Proposing in a particularly advantageous configuration of the present invention, described control computer is in the first printing
The stock rule in the second print job when print job is changed are carried out between task and the second print job
Consider when lattice are less than the stock specification of the first print job no longer to print in the case of the second print job
The region of brush.Sheet-fed press can print with plurality of specifications.Thus print at sheet-fed
Such as can print with specification 105, specification 75 and specification 52 on brush machine.When first with big specification
Such as when specification 105 carries out the page printing and then printing a kind of specification 75, then at the inking device
With the marginal area of printing equipment has the ink-covered area not republished, therefore in these ink-covered areas, ink is not
Reduce.This ink excess is considered as follows by described control computer, i.e. in specification significantly
By lateral even ink and too high by the respective combination of described " toning " (hyperchromic) during reduction
Excessive on the marginal zone (randzonen) that ink over compensation is finally printed.In this way and
Method is got rid of ink in the ink-covered area not printed and the ink got rid of is supplied to the edge of printing
District.Excess of ink in the ink-covered area that will not print in this case is used for improving in short-term the edge of printing
Ink in district feeds.The most also need the fewest ink is fed to inking dress then for increasing ink
In putting.
Accompanying drawing explanation
Below by way of multiple accompanying drawing detailed description and interpretation present invention.Accompanying drawing illustrates:
Fig. 1 is shown in multiple regulation processes of inking device when changing print job according to prior art
And the method improved according to the present invention is shown at rightmost；
Fig. 2 is that in the inking device, the ink layer on inking device roller applies from the first rider roller to ink
The structure of roller；With
Fig. 3 is the relation of quantity of ink and face coincidence factor.
Detailed description of the invention
Figure 1 illustrates three printing process printing V1, printing V2 and printing V3, they can
Printer 1 is performed when print job is changed.These three method is open by prior art.
Here, first check whether to need to reduce ink curve when print job is changed, if necessary,
Then change forme and carry out a so-called ink entrance 2.If need not reduce ink curve, then
Change forme equally and check whether to wash the inking device.If needing to wash the inking device,
Then carry out a so-called ink and enter 1.If need not wash the inking device, then enter directly into print
Brush step.Propose now according to the present invention, the tune caused will be changed on printer 1 by print job
Joint is scaled and colours change accordingly.Change based on described coloring, defeated with the ink improved in the short time
Enter to carry out the control of " toning ".This big advantage having is, printing worker need not consider necessity
The view that coloring changes.That is, in first method V1, must assure that ink curve reduces changing forme
Carry out before.But printing worker usually forgets to trigger this function.This causes being printed onto this page always
Stack end and no longer have page to be printed for the reduction of ink curve afterwards.Flexible program 2 has
The big shortcoming having is, the washing of the inking device is the most time-consuming and causes extra cost, because
On the one hand ink can be consumed and on the other hand the ink washed off refuse process must be carried out.Method 3
Major defect be, process the second print job time high startup maculature occurs.
Fig. 2 illustrates the basic structure of the ink layer in the inking device, therein, it can be seen that quantity of ink
By the Primary layer 2 being directly proportional to the layer thickness through printing and by the ink wedge 3 depending on face coincidence factor
Composition.Described ink wedge 3 is the strongest and towards on plate cylinder in the first anilox roll near ink fountain
Last ink apply roller and be reduced on Primary layer 2.
Can be seen that the relation between face coincidence factor FD and ink film thickness in figure 3.To described ink layer
Thickness configures corresponding quantity of ink FA.This means: at face coincidence factor in the case of 0 to 100%,
Quantity of ink rises to about 1.25 from 1.
The relation of the quantity of ink FA in the inking device and face coincidence factor FD is for constant printing layer thickness
For can by means of simulation program (such as FASI) otherwise by printing test determine.Additionally,
Quantity of ink FA in the inking device is directly proportional to the layer thickness through printing.Based on old print job and Xin Yin
The face coincidence factor FD of brush task, calculates the relative quantity of ink in the inking device for new task.Described
Quantity of ink relatively is scaled coloring relatively.Then, when starting printing by means of toning (hyperchromic)
And/or ink enter 2 and/or face subductionCompensate described relative coloring.
One example is:
First print job, the face coincidence factor FD of the 80% of ink-covered area/Mo Jian (Farbzone).
Second print job, the face coincidence factor FD of the 40% of same ink-covered area.
Following value can be read from the form of Fig. 3:
Quantity of ink 80%FD=1.2；Quantity of ink 40%FD=1.1
Therefore, for the second print job, the mistake of 1.2/1.1=1.09 is obtained when print job is changed
Degree inking.That is the ink of 9% must be got rid of from ink-covered area when the second print job starts
Amount.According to prior art, this is carried out by described toning.
Other scheme may be possible that
Can feed before printing or take out ink if desired.Opening relative to the first print job
The ink-covered area needing more ink time dynamic can obtain these ink before the first printing, such as by means of
Ink enters 2.It is to say, for these ink-covered areas, without mixing colours and these during printing
Ink-covered area the most earlier inking is stable.
It can be possible that described method automatically makes suggestion or enforcement.Equipment control device can be with base
Comparison in the picture material of the first and second print job automatically carries out suitable method or to print
Dataller people advises that at least one manipulation selects.
The method of the present invention can also reduce with faceCombined.If in task
A lot of ink must be taken away in ink key range during replacing, thus described regulating device must the most excessively be controlled
System, therefore can be when the second print job starts by moistening medium supply apparatus more than 100 pages
Turn off several turns, in order to make ink take out by means of so-called subduction and substantially speed up.Subtract in described face
Except afterwards, after being automatically turned on again damping device by the control computer of printer 1 and performed amendment
Ink enter or toning.The most described amended toning is then all worked for all of ink-covered area.
This is listed example below:
First print job is 80% coincidence factor FD in ink-covered area 1
First print job is 8% coincidence factor FD in ink-covered area 2
Second print job is 8% coincidence factor FD in ink-covered area 1
Second print job is 80% coincidence factor FD in ink-covered area 2
Chart from Fig. 3 reads:
Quantity of ink 80%FD=1.2
Quantity of ink 8%FD=1.02
The ink of about 18% must be taken away for ink-covered area 1, for ink-covered area 2 when starting the second print job
Then add the ink of about 18%.
The quantity of ink being stored in the inking device (is counted now for region, all of ink-covered area simplifiedly at this
Calculate) it is about 20mm3/mm.The quantity of ink stored depends on face coverage rate in practice, sees above.
Along with each subduction, in the case of simplifying calculating, people take about 0.8mm away3The ink of/mm.
If i.e. people perform such as three face subductions, then take about 3*0.8mm away3/mm/20mm3/ mm=12%
Ink.
The most in this example, short ink must also be performed for ink-covered area 1 to regulate to take away
The ink of 18%-12%=6%.The ink of 18%+12%=30% must be fed for ink-covered area 2, this or
2 infeeds can be entered by a kind of type ink before or after face is reduced, or can be by adjusting
Color feeds.The infeed of ink is always simpler and more preferable than taking away of ink.
But there is limitation in the method.The method goes wrong when bigger specification is changed, if
If being replaced by bigger page specification.The subduction of these faces is in the feelings of less printable fabric specification
Also it is critical under condition.This must correspondingly consider proposed method.Therefore exist one other
Scheme, wherein, considers the region do not printed in the case of specification reduces.It is greatly reduced in specification
In the case of can be by lateral even ink and by the mistake of the respective combination in the marginal zone of last printing
High toning compensates the impact that specification diminishes.
For also providing an example:
First print job, specification is 105, and all 32 ink-covered areas have the face coincidence factor FD of 40%.
Second print job simply uses ink-covered area 3 to 30, say, that ink-covered area 1 and 2 and 31 He
32 do not print.Ink-covered area 3 to 30 has the face coincidence factor FD of 80%, has the face of 0% outside ink-covered area
Coincidence factor.
Form from Fig. 3 can read:
Quantity of ink 80%FD=1.2；Quantity of ink 40%FD=1.1；Quantity of ink 0%FD=1.0
It is to say, the ink of about 10% must be taken in the ink-covered area not printed away, in the ink-covered area of printing
The ink of middle addition about 10%.But it is because in the marginal zone do not printed not carrying out ink reduction, ink
District 3 and 4 and ink-covered area 29 and 30 use the ink of the marginal zone do not printed, so that at these
Ink-covered area 3 and 4 and 29 and 30 is not carried out hyperchromic (+10%-10%=0%).
Reference number table
1 printer
2 Primary layer
The 3 ink wedges depending on FD
FD face coincidence factor
FA ink applied amount
The first flexible program that V1 print job is changed
The second flexible program that V2 print job is changed
The 3rd flexible program that V3 print job is changed
The flexible program of the improvement that V4 print job is changed
Claims (6)
1. one kind controls computer control for utilization in the ink-covered area formula inking device of printer (1)
The method of quantity of ink, wherein, temporarily improves quantity of ink during printing operation compared with conventional requirement
Infeed, it is characterised in that calculate the printing of two successive by means of described control computer
Task aberration and between the two print job by temporarily improve quantity of ink infeed come
Adjust described aberration, wherein, the raising of the infeed of described quantity of ink ink very little in the case of
Carrying out when second print job starts, the raising of the infeed of described quantity of ink is in the case of ink is too many
Carry out at the end of the first print job.
Method the most according to claim 1, it is characterised in that in the feelings removing very many quantity of ink
In short time interval, profit is turned off by control computer when the second print job starts to print under condition
Humid medium feeds device and connects again described moistening medium infeed dress after described time interval has been crossed
Put.
3. according to the method for claim 1 or 2, it is characterised in that described control computer is based on
One and second print job printing image comparison select coupling method.
4. according to the method for claim 1 or 2, it is characterised in that described control computer is first
The printing in the second print job when print job is changed is carried out between print job and the second print job
When thing specification is less than the stock specification of the first print job consider in the case of the second print job not
The region republished.
Method the most according to claim 4, it is characterised in that excess of ink when specification diminishes is passed through
The lateral even ink of the rider roller in the inking device of printer (1) and to the marginal zone of last printing
Excessively high output ink compensates.
Method the most according to claim 5, it is characterised in that the ink-covered area not printed is by its excess of ink
The marginal zone of printing is given in output.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011018860.6 | 2011-04-28 | ||
| DE102011018860 | 2011-04-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102756552A CN102756552A (en) | 2012-10-31 |
| CN102756552B true CN102756552B (en) | 2016-10-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210134611.6A Active CN102756552B (en) | 2011-04-28 | 2012-04-28 | Shading process when task is changed |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN102756552B (en) |
| DE (1) | DE102012005785A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102014010082A1 (en) | 2013-08-02 | 2015-02-05 | Heidelberger Druckmaschinen Ag | Clock ratio for the Color Booster |
| WO2022128283A1 (en) * | 2020-12-16 | 2022-06-23 | Agfa Offset Bv | Lithographic printing press make-ready method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2728738A1 (en) * | 1977-06-25 | 1979-01-11 | Roland Offsetmaschf | DEVICE FOR CONTROLLING AND REGULATING THE PRINTING PROCESS ON PRINTING MACHINES |
| CN101049755A (en) * | 2006-04-07 | 2007-10-10 | 三菱重工业株式会社 | Ink control apparatus, printer, and printing method |
| CN101279532A (en) * | 2007-04-02 | 2008-10-08 | 海德堡印刷机械股份公司 | Improved characteristic curves measurement in printing presses |
| DE102009030947A1 (en) * | 2009-07-01 | 2011-01-05 | Heidelberger Druckmaschinen Ag | Method for regulating color supply in printing unit in e.g. offset printing machine for processing paper, involves interrupting control for color dosing elements in one of zones in dependent upon comparison results |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0241248A (en) * | 1988-08-02 | 1990-02-09 | Dainippon Printing Co Ltd | Ink amount setting processing device for inking device |
| JPH1016193A (en) * | 1996-06-27 | 1998-01-20 | Komori Corp | Control method of ink film thickness |
| JP2000037853A (en) * | 1998-07-22 | 2000-02-08 | Komori Corp | Ink film thickness control method for printing press |
| DE10056247B4 (en) | 1999-12-06 | 2011-07-21 | Heidelberger Druckmaschinen AG, 69115 | Method for controlling the amount of ink in a printing machine |
| JP4024593B2 (en) * | 2002-05-22 | 2007-12-19 | 大日本スクリーン製造株式会社 | Ink supply control device and printing device |
| DE102004021599A1 (en) | 2004-05-03 | 2005-12-01 | Gretag-Macbeth Ag | Method for determining color and / or density values and printing devices designed for the method |
| CN101118222B (en) | 2006-08-03 | 2012-07-04 | 海德堡印刷机械股份公司 | Color measuring apparatus having differently operating measuring devices |
-
2012
- 2012-03-21 DE DE201210005785 patent/DE102012005785A1/en active Pending
- 2012-04-28 CN CN201210134611.6A patent/CN102756552B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2728738A1 (en) * | 1977-06-25 | 1979-01-11 | Roland Offsetmaschf | DEVICE FOR CONTROLLING AND REGULATING THE PRINTING PROCESS ON PRINTING MACHINES |
| CN101049755A (en) * | 2006-04-07 | 2007-10-10 | 三菱重工业株式会社 | Ink control apparatus, printer, and printing method |
| CN101279532A (en) * | 2007-04-02 | 2008-10-08 | 海德堡印刷机械股份公司 | Improved characteristic curves measurement in printing presses |
| DE102009030947A1 (en) * | 2009-07-01 | 2011-01-05 | Heidelberger Druckmaschinen Ag | Method for regulating color supply in printing unit in e.g. offset printing machine for processing paper, involves interrupting control for color dosing elements in one of zones in dependent upon comparison results |
Also Published As
| Publication number | Publication date |
|---|---|
| DE102012005785A1 (en) | 2012-10-31 |
| CN102756552A (en) | 2012-10-31 |
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